Bedding To Coordinate with This Rug?

Q: I've bought this Dwell Zigzag Rug in Lapis, and am struggling with what kind of bedding to buy that will coordinate well with it. This is for a bunk room with four full beds that will be used by little kids and teenagers. A friend suggested natural-colored linen duvet covers, but I've been having a hard time finding something along those lines that is reasonably priced (under $150 per duvet, but ideally under $100). Other suggestions for bedding (type of fabric? color - solid or pattern?) that would work well?